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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Current Neurovascular Research</journal-id><journal-title-group><journal-title xml:lang="en">Current Neurovascular Research</journal-title><trans-title-group xml:lang="ru"><trans-title>Current Neurovascular Research</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1567-2026</issn><issn publication-format="electronic">1875-5739</issn><publisher><publisher-name xml:lang="en">Bentham Science</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">644246</article-id><article-id pub-id-type="doi">10.2174/0115672026288134231228091756</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>Medicine</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Correlation of Circadian Rhythms and Improvement of Depressive Symptoms in Acute Ischemic Stroke Patients</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Ding</surname><given-names>Yue</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>Chen</surname><given-names>Shengnan</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>Sun</surname><given-names>Qian</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name><surname>Han</surname><given-names>Fei</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>Chen</surname><given-names>Rui</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name><surname>Li</surname><given-names>Jie</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff id="aff1"><institution>Department of Neurology, The Second Affiliated Hospital of Soochow University</institution></aff><aff id="aff2"><institution>Department of Neurology,, The Second Affiliated Hospital of Soochow University,</institution></aff><aff id="aff3"><institution>Department of Respiratory Medicine, The Second Affiliated Hospital of Soochow University</institution></aff><pub-date date-type="pub" iso-8601-date="2024-01-01" publication-format="electronic"><day>01</day><month>01</month><year>2024</year></pub-date><volume>21</volume><issue>1</issue><fpage>15</fpage><lpage>24</lpage><history><date date-type="received" iso-8601-date="2025-01-07"><day>07</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Bentham Science Publishers</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Bentham Science Publishers</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://journals.eco-vector.com/1567-2026/article/view/644246">https://journals.eco-vector.com/1567-2026/article/view/644246</self-uri><abstract xml:lang="en"><p id="idm46041443773968">Objectives::To investigate the correlation between evening melatonin timing secretion, dim light melatonin onset (DLMO), and post-stroke depression (PSD) in acute ischemic stroke patients and their influence on the improvement of depressive symptoms.</p><p id="idm46041443777968">Materials and Methods::120 patients with a recent magnetic resonance imaging confirmed stroke were included. Salivary melatonin samples were collected at 5 time points within 1 week after hospitalization (7 p.m.-11 p.m., 1 sample per hour). The circadian phase was defined by calculating DLMO secretion. Post-stroke depressive symptoms were evaluated by the 17-item Hamilton Rating Scale for Depression (HRSD) both on day 7 of hospitalization and 3 months after stroke. Patients were divided into PSD and non-PSD groups based on whether the acute phase HRSD score was ≥8. Similarly, patients were divided into the improved depressive symptoms (IDS) and no improvement in depressive symptoms (non-IDS) groups based on whether the HRSD score at 3 months was lower than at baseline. Neurological recovery at 3 months was assessed using the modified Rankin Scale (mRS).</p><p id="idm46041443781936">Results::The difference in DLMO between PSD and non-PSD patients was not statistically significant (p =0.173). In the non-IDS group, there was a significant decrease in melatonin secretion at 10 p.m. (p =0.012), and DLMO was significantly later than in the IDS group (p =0.017). Logistic regression analysis showed that DLMO (OR 1.91, 95%CI:1.13-3.23, p = 0.016) was an independent risk factor for persistent no improvement in depressive symptoms, which was associated with a markedly worse prognosis (p (&lt;0.001).</p><p id="idm46041443786992">Conclusion::Our findings suggest possible interventions for the very early identification of non- IDS patients.</p></abstract><kwd-group xml:lang="en"><kwd>Melatonin</kwd><kwd>dim light melatonin onset</kwd><kwd>depressive symptoms</kwd><kwd>circadian rhythm</kwd><kwd>stroke</kwd><kwd>prognosis.</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Villa RF, Ferrari F, Moretti A. Post-stroke depression: Mechanisms and pharmacological treatment. 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